#include<stdio.h>
#include<conio.h>
#include<string.h>
#include<stdlib.h>
int N;
char mima[20]="123";

struct book
{
  long num;
  char name[20];
  char publish[20];
  struct time
  {
    int day;
    int month;
    int year;
  }t;
  int jie;
}bk[20];
